STOP MECHANISM FOR COLLAPSIBLE LADDER

FIELD: construction. ^ SUBSTANCE: stop mechanism for collapsible ladder comprises several ladder sections, at the same time each ladder section has two ladder stands arranged parallel to each other and mutually joined at one end by crosspiece to form U-shaped ladder section, besides each ladder sect...

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1. Verfasser: EHRIKSSON PER-OLOF
Format: Patent
Sprache:eng ; rus
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