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  2. John Crane Group - Wikipedia

    en.wikipedia.org/wiki/John_Crane_Group

    In 1948, Crane Packing developed its own seal face [6] lapping machines and processes, which evolved into Crane Packing’s Lapmaster division. Another advancement of sealing and packing technology during this period was the commercial availability of polytetrafluoroethylene (PTFE), marketed by its creator DuPont as Teflon .

  3. Ex-Cell-O - Wikipedia

    en.wikipedia.org/wiki/Ex-Cell-O

    Boring machines; Thread grinding machines; Center lapping machines; By the mid-1960s, the company was based in Troy, Michigan. [6] In 1986, Ex-Cell-O was acquired by defense industry conglomerate Textron for $77.50 per share in cash, totaling about $1.1 billion (about $3.1 billion in 2023 dollars).

  4. Lapping - Wikipedia

    en.wikipedia.org/wiki/Lapping

    The second picture is of a commercially available lapping machine. The lap or lapping plate in this machine is 30 cm (12 in) in diameter, about the smallest size available commercially. At the other end of the size spectrum, machines with 2.4-to-3.0-metre-diameter (8 to 10 ft) plates are not uncommon, and systems with tables 9 m (30 ft) in ...

  5. Category : Manufacturing companies based in California

    en.wikipedia.org/wiki/Category:Manufacturing...

    Manufacturing companies based in Greater Los Angeles (9 C, 74 P) Manufacturing companies based in the San Francisco Bay Area (15 C, 33 P) Motor vehicle manufacturers based in California (6 C, 52 P)

  6. Category:Companies based in California - Wikipedia

    en.wikipedia.org/wiki/Category:Companies_based...

    Companies based in California by populated place (75 C) Companies based in California by county (53 C) Privately held companies based in California (4 C, 440 P)

  7. Union Iron Works - Wikipedia

    en.wikipedia.org/wiki/Union_Iron_Works

    Peter Donohue, an Irish immigrant, founded Union Brass & Iron Works in the south of Market area of San Francisco in 1849. It was later run by his son, James Donohue. After years as the premiere producer of mining, railroad, agricultural and locomotive [2] machinery in California, Union Iron Works, led by I. M. Scott, entered the ship building business and relocated to Potrero Point where its ...

  8. Category : Manufacturing companies based in Oakland, California

    en.wikipedia.org/wiki/Category:Manufacturing...

    Pages in category "Manufacturing companies based in Oakland, California" The following 16 pages are in this category, out of 16 total.

  9. Category : Manufacturing companies based in Los Angeles

    en.wikipedia.org/wiki/Category:Manufacturing...

    Manufacturing companies based in Los Angeles — based in the City of Los Angeles, located within Greater Los Angeles, Southern California For those in the larger multi−county region, see Category: Manufacturing companies based in the Greater Los Angeles Area .

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