Author: Patent Office / Publisher: Patent Office / Sudoc Stem: C 21.3 - Blacklight Search Results

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1. Classification bulletin. 472. Class 350, Optics, systems and elements, containing classification definitions of above class established by Office of Patent Classification of Patent Office by classification order, dated Nov. 23, 1966.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Nov. 1966.]
SuDoc number:: C 21.3:472

2. Classification bulletin. 200. Revision 4, class 260, Chemistry, carbon compounds, containing classification definitions of above class revised by Classification group of Patent Office, to include all changes through order 376, dated Nov. 18, 1965.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1966.]
SuDoc number:: C 21.3:200/5

3. Classification bulletin. 470. Class 49, movable or removable closures, containing classification definitions of above class established by Office of Patent Classification of Patent Office by classification order, dated Apr. 15, 1966.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1966.]
SuDoc number:: C 21.3:470

4. Classification bulletin. 471. Class 335, Electricity, magnetically operated switches, magnets and electromagnets, containing classification definitions of above class established by Office of Patent Classification order 383. dated Aug. 11, 1966.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1966.]
SuDoc number:: C 21.3:471

5. Classification bulletins. 468. Class 201, Distillation, processes, thermolytic, containing classification definitions of above class established by Office of Patent Classification of Patent Office by classification order, dated Dec. 15, 1965.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Dec. 1965.]
SuDoc number:: C 21.3:(nos.)

6. Classification bulletins. 469. Class 203, Distillation, processes, separatory, containing classification definitions of above class established by Office of Patent Classification of Patent Office by classification order, dated Dec. 15, 1965.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Dec. 1965.]
SuDoc number:: C 21.3:(nos.)

7. Classification bulletins. 467. Class 62, Static structures, e.g., buildings containing classifications definitions of above class established by Office of Patent Classification of Patent Office by classification order 375, July 28, 1965.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [July 1965.]
SuDoc number:: C 21.3:(nos.)

8. Classification bulletin. 406. Class 240. Static molds containing classification definitions of above class established by Office of Patent Classification of Patent Office by classification order, dated Apr. 28, 1965.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Apr. 1965.]
SuDoc number:: C 21.3:466

9. Classification bulletin. 465. Class 228, Metal fusion-bonding apparatus, containing classification definitions of above class established by Office of Patent Classification of Patent Office by Classification order, dated Mar. 11, 1965.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Mar. 1965.]
SuDoc number:: C 21.3:465

10. Classification bulletin. 462. Class 351, Optics, eye examining, vision testing and correcting, containing classification definitions of above class established by Office of Patent Classification of Patent Office by Classification order, dated Nov. 25, 1964.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [Nov. 1964.]
SuDoc number:: C 21.3:462

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