JPS4949409B1 |
1,144,425. Seaming non-metallic sheet material. IRONFLEX A.G. 4 Sept., 1967 [7 Sept., 1966; 26 Sept., 1966], No. 40368/67. Heading B5K. [Also in Divisions E1 and F2] A synthetic thermoplastic sheet 16 is attached to a supporting structur...
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