4. Acoustics
  5. Sound-modifying means
  6. Muffler, fluid conducting type

David W. Hegdahl

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Micro-channeled protective film

Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Reexamination Certificate

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Pneumatic tool having noise reducing muffling structure

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Profile ID: LFUS-PAI-P-1866034

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