Thereby, {HEAD ~ a single retrievable buoy anchoring drilling device} can be used to anchor a plurality of anchorable marker buoy assemblies such as used to mark the underwater locations for placement of {TAIL ~ cables} or pipelines such as without limitation, a gas pipeline and an oil pipeline 
Thereby , { HEAD ~ a single retrievable buoy anchoring drilling device } can be used to anchor a plurality of anchorable marker buoy assemblies such as used to mark the underwater locations for placement of { TAIL ~ cables } or pipelines such as without limitation , a gas pipeline and an oil pipeline
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH