COMMUNCATION MACHINERY AND IMPLEMENTS PRIMARILY FOR FISH FINDING PURPO SES: NAMELY, APPLIED RADIO APPARATUS COMPRISING LORAN APPARATUS, DIRE CTION FINDER, BEACON APPARATUS, AND RADAR APPARATUS; APPLIED ELECTRONIC MACHINERY AND APPARATUS PRIMARILY FOR FISH FINDINGPURPOSES : NAMELY, HYDROPHONE, APPLIED ULTRA-SONIC ECHO SOUNDER AND RANGING AP PARATUS, APPLIED ULTRA-SONIC FLAW DETECTOR, APPLIED ULTRA-SONIC CLEANING APPARATUS, AND APPLIED ULTRA-SONIC ATOMIZING APPARATUS