Eastman MFR Patents
Joseph Eastman invents three types of Hose Couplings. Patent # 1,926,270 A, 1,969,548 A, and 1,954,989 A. It is unclear which design took precedence for use in the 1930’s.
Eastman continues making improvements or Hose Couplings. See patent #’s 2,086,703 A, and 2,031,883 A.
Hose Coupling
Joseph Eastman’s last Patent.