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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for First telegrapher:

MORSE: First telegrapher
HATH: Word in the first telegraph message
HATH: Verb in the first telegraph message
HATH: Verb in the world's first telegraph message
HATH: Second word of first telegraphic message.
LOOMIS: First wireless telegrapher
UTAH: Site of the last link of the first Transcontinental Telegraph
HATH: First verb to be telegraphed