Page Offices 2 = July of the Chief of better to say that certain disclosed in the twq@ earlier patents were modified and new construction which constitutes Cannon, buy that the structures are that claims of the two direct only the cannon block mm, the of. 31, 1944 the 37 Ordnance mechanical earlier patents will not read construction, For instances, the breech- with respect to guns of slides vertically the ijer patents Nos. 678,937 and alignment with the barrel and effect the breechblock and barrel by the breechblock on recoil, that the some Préeahhlocks be regarded to for operating the locking two earlier of the be said of the be earlier whereas and does patents, the not come. wi th- it does found both earlier ents, Nos. 678,937 and 659,507 parts of there Glsclosed, Canon Ccouprises a new of for moving construction, The but mum, construc~ or in 37 patents, principles to guns of operating Simil«or those that is different movements the true enployed eannon may nevertheless means, 37 what is of the therefore, of either it movement movement MAY y claims reerward the Lt the greater between to constructions in a separation in the similarity ma, both reciprocate ear- of the the the breechblock bloek of a the the which tion 659,507 operating are in However, respectively, in the extent whereas bears in differen it to the barrel, capnon utilised were 37 ma, cannon for which the the movement movements the other mechanical and facet is one which embody pat- @ifferent that the 37 combines mm,