发明名称 Insulated flat roof dewatering system
摘要 The 110 cassette (26) is clipped into the open back of the camera to form a single unit with the camera. The middle of the cassette shuts off the centre of the camera and the supply reel chamber (26a)overlaps the edge of the camera. The film is wound by a toothed drive inside the camera and over which the other end of the cassette is clipped.The film drive is powered by a thumb wheel (40) under the camera, reached when the cassette is fully pushed in. A flip-up viewfinder frame completes the camera
申请公布号 DE3645022(C2) 申请公布日期 1989.11.02
申请号 DE19863645022 申请日期 1986.07.29
申请人 HELFRECHT, MANFRED, 8598 WALDERSHOF, DE 发明人 VERZICHT DES ERFINDERS AUF NENNUNG
分类号 E04D13/04;E04D13/16 主分类号 E04D13/04
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