KNOWLEDGE ASSET
436 US3077218 Lockwasher in Form of Dish Spring 专利直链
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| File | 436__US3077218_Lockwasher_in_Form_of_Dish-Spring_专利直链.pdf |
|---|---|
| Type / category | reference_pdf / references |
| Section | Applications · fasteners |
| Organization | — |
| Authors | — |
| Language | — |
| Rights / access | unknown / internal |
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