Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
  • B29D99/00—Subject matter not provided for in other groups of this subclass
  • B29D99/0064—Producing wearing apparel
  • B29D99/0071—Masks, e.g. gas masks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2021/00—Use of unspecified rubbers as moulding material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/48—Wearing apparel
  • B29L2031/4807—Headwear
  • B29L2031/4835—Masks

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Respiratory Apparatuses And Protective Means (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=27249000

Family Applications (1)

Country Status (3)

• 0
  • NL NL18695D patent/NL18695C/xx active
• 1926
  • 1926-08-11 FR FR620206D patent/FR620206A/fr not_active Expired
• 1927
  • 1927-05-21 GB GB13666/27A patent/GB275934A/en not_active Expired

Also Published As

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