Manlove & Spaulding Mfg. Co. No. 3806-BH civil, in district court in and for southern district of California, central division, R. E. Spaulding, L. B. Manlove, and P. M. Manlove, copartners doing business under firm name and style of Manlove & Spaulding Mfg. Co., v. Douglas Aircraft Company, Inc.; brief of United States in support of motion for summary judgment.