Built-in spring buckle structure capable of protecting the spring and reducing the total volume of the buckle
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Buckle structure having locking function comprising a locking member that is movable to have a locking opening thereof selectively engage a locking portion of a base
TW201441469A
Latch is provided with an adjusting-and-positioning apparatus
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Handle apparatus
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Handle assembly
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Position limiting device for a bolt of a door latch