- unitid
-
{"value"=>"1018664", "type"=>"local_mss"}
- unitdate
-
{"era"=>"ce", "calendar"=>"gregorian", "normal"=>"1914-12-31", "value"=>"filed December 31, 1914"}
- date_inclusive_start
-
1914
- date_inclusive_end
-
1914
- keydate
-
1914-12-31
- date_start
-
1914-12-31
- date_end
-
1914-12-31
- unittitle
-
{"value"=>"Sprague Automatic Train Control System, patent application, ser. no. 879,939"}
- scopecontent
-
{"value"=>"<p>Drafts, corrected copies, amendments.</p>"}
- container
-
{"type"=>"box", "value"=>"76"}