were photolithographing

• past progressive

  past progressive

  Used to describe an ongoing action or continuous state that was happening at a specific time in the past.

  of photolithograph.
  photolithograph

  noun

  Also photolithoprint a lithograph printed from a stone or the like upon which a picture or design has been formed by photography.

More Suggestions

• photolithography
• chromolithograph
• chromolithography
• stereolithography
• autolithography
• photomicrograph
• photozincography
• stereophotography
• telephotograph