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811. Classification bulletin. 422. class 96, Photographic chemistry, processes and materials, containing classification definitions of above class revised by classification group of Patent Office to include all changes through order 206, dated Nov. 23, 1956.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1956.]
SuDoc number:: C 21.3:(nos.)

812. Classification bulletins. 155. Revision 1, class 24, Buckles, buttons, clasps, etc., containing definitions of above class revised by classification group of Patent Office, to include all changes through order 197, dated June 28, 1956.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1956.]
SuDoc number:: C 21.3:(nos.)

813. Classification bulletins. 200. Revision 1, class 260, Chemistry, carbon compounds, containing classification definitions of above class revised by Classification Group of Patent Office, to include all changes through order 192, dated Mar. 16, 1956.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1956.]
SuDoc number:: C 21.3:(nos.)

814. Classification bulletins. 313. Class 219, Electric heating, containing classification definitions of above class revised by Classification Group of Patent Office, to include all changes through order 200, dated Aug. 30, 1956.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1956.]
SuDoc number:: C 21.3:(nos.)

815. Classification bulletins. 421. Class 141, Fluent material handling, with receiver or receiver coacting means, containing classification definitions of above class revised by Classification Group of Patent Office, to include all changes through order 203, dated Sept. 28, 1956.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1956.]
SuDoc number:: C 21.3:(nos.)

816. Decisions of commissioner of patents and of United States courts in patent and trademark cases, compiled from V.690-701 of Official gazette of Patent Office during 1955.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: 1956
SuDoc number:: C 21.6:955

817. General requirements for admission to examination for registration to practice before Patent Office.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1956.]
SuDoc number:: C 21.14:R 26

818. Index of patents issued from Patent Office, 1955.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: 1956
SuDoc number:: C 21.5/2:955

819. Index of trademarks issued from Patent Office, 1955.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: 1956
SuDoc number:: C 21.5/3:955

820. Index to classification, Jan. 1956.

Corporate/Agency Authors:: Patent Office and Commerce Dept.
Publisher:: Patent Office
Date:: [1956.]
SuDoc number:: C 21.12/2:956

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