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  2. Hard hat - Wikipedia

    en.wikipedia.org/wiki/Hard_hat

    The MSA Skullgard was the best, but quite expensive. Many hard hats were made of cheaper steel. Several Workmen wearing ribbed metal hard hats, and one (right) in a MSA Skullgard, at the site of a Texas oil well in 1940. Lighter affordable aluminum became popular for hard hats around 1938, except for electrical applications.

  3. Bollman Hat Company - Wikipedia

    en.wikipedia.org/wiki/Bollman_Hat_Company

    Hat making was, for many years, a major industry in Lancaster and Berks County where Adamstown is located. Bollman Hat Company became one of the best known hat makers in the region, supplying hat bodies (the unshaped felted wool cones) to hat makers up and down the east coast. Over time they bought out the majority of the other hat makers in ...

  4. International Hat Company - Wikipedia

    en.wikipedia.org/wiki/International_Hat_Company

    International Hat was an early participant in the establishment of industry standards, product certification, and claimant issues arising from patent infringement cases within the hat segment of the U.S. apparel industry. International Hat has had several labor issues settled in the US legal system. The company also participated in ways to ...

  5. Welding helmet - Wikipedia

    en.wikipedia.org/wiki/Welding_helmet

    OSHA also recommends certain shade numbers based on the weld's type and current rating. [10] The 1967 edition of ANSI Z49.1.7.2.2.10 specifies that "all filter lenses and plates shall meet the test for transmission of radiant energy prescribed in paragraph 6.3.4.6 of the Safety Code for Head, Eye and Respiratory Protection, USA Standard Z2.1-1959".

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  7. List of hat styles - Wikipedia

    en.wikipedia.org/wiki/List_of_hat_styles

    Bowler hat: A hard felt hat with a rounded crown created in 1850 by Lock's of St James's, the hatters to Thomas Coke, 2nd Earl of Leicester, for his servants. More commonly known as a Derby in the United States. [19] Breton: A woman's hat with round crown and deep brim turned upwards all the way round.

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