Invertible umbrella canopy with spokes - has spoke units, slide-piece, canopy-strut, tensioning-strut, support strut, guide-connecting-rod and elastic bending device
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Wind invertible umbrella rib linkage system
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Wind invertible umbrella rib linkage system
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Umbrella cover connector system
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Tie rack
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Wind force responsive umbrella
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Umbrella centerpost latch system
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Alarm system for a cardholder
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Alarm system for a cardholder
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Umbrella with grip fixed to stem - has guide duct for press button to move along, and spring
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Umbrella button latch
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Automatic umbrella locking mechanism - releases separate spring-loaded slides for folding and unfolding
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Automatic umbrella
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Umbrella cushion
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Umbrella cushioning member
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Automatic umbrella having stable extending and folding structure
CA2043105A1
Automatic umbrella having stable extending and folding structure
