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SUBERSIBLE WESSEL for NAVIGATION UNDER Ice UNITED sIMóNSTATES PATENT OFFICE. LAKE, or MILFORD, conNECTICUT. suBMERSIBLEVESSEL FOR NAVIGATION UNDERICE. Application filed September 10, 1920. serial No. 409,371. To all uphoir - it may concern: the vessel taken in the plane of line 4-4, Be it known that I, SIMON LAKE, a citizen Fig. 3 and showing in dotted lines the ice of the United States, residing at Milford, in field being crushed. Fig. 5 is a fragmentary
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