STONE, Circuit Judge.
In an earlier litigation, appellant was decreed an infringer of claims 1, 2, and 3 of O'Brien patent No. 855,017 (issued May 28, 1907) and of claims 1 to 8, inclusive, of Hirshstein No. 1,348,945 (issued August 10, 1920) — both patents being for roof drain devices. The decree therein, entered in 1922, permanently enjoined appellant from infringing the above claims of these patents. The O'Brien patent expired in 1924 and thereafter, in...
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